Re: [PATCH 0/5] KVM: guest_memfd: bind backing memory to a NUMA node

[David Hildenbrand (Arm)]

On 9/2/26 21:46, Gregory Price wrote:
> guest_memfd allocates its folios through a per-inode shared mempolicy.
> 
> Today that policy can only be set after the fact, with mbind() on a host
> mmap of the fd. That requires the fd to be mappable, and it cannot reach
> folios that are only ever guest-faulted. Neither holds for a
> non-mappable (confidential) guest_memfd.

That looks like an investment into a mechanism we will soon consider legacy, so
I am not convinced this is the right approach?


-- 
Cheers,

David